-update lgpl.texi

doc/lgpl.texi

@@ -470,13 +470,7 @@ decision will be guided by the two goals of preserving the free status
 of all derivatives of our free software and of promoting the sharing
 and reuse of software generally.
 
-@iftex
-@heading NO WARRANTY
-@end iftex
-@ifinfo
-@center NO WARRANTY
-
-@end ifinfo
+@center @b{NO WARRANTY}
 
 @item
 BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
@@ -502,13 +496,7 @@ SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 DAMAGES.
 @end enumerate
 
-@iftex
-@heading END OF TERMS AND CONDITIONS
-@end iftex
-@ifinfo
-@center END OF TERMS AND CONDITIONS
-
-@end ifinfo
+@subheading END OF TERMS AND CONDITIONS
 
 @page
 @subheading How to Apply These Terms to Your New Libraries